(HP-67/97) Othello for 67/97 40th anniversary

[Jean-Marc Verniajou]

(11-15-2019 05:30 AM)Paul Dale Wrote:  A wild thought: changing the representation base to 10 would allow the board registered to be displayed (printed)...
My 97 is half a continent away or I'd give it a go.

Hi Paul,
You're right. Thank you for your interest.
I first started to write this in 2006 as a challenge that no 70's Othello game programmer (I know some of them) bet a penny on, knowing the limited capabilities of the 67/97. At the time, I wrote it on a 41 with the precious help of continuous memory, and I had not enough time to shrink it below 229 67/97-steps. Using base 4 instead of base 10 helped me squeeze the code a few steps but was not enough to go below 229.
I found enough motivation (rage?) and a little time during 2016 and shrank the code to 199 steps. Staying below the 200 steps mark looked good to me, and I left things as is.
Best,
Jean-Marc